Chava works at a large investment company, managing one of their mutual funds, one that is restricted to buying only domestic U.S. stocks. She gets transferred to a different fund that can invest in both U.S. and international stocks. Imagine the investment opportunity set (i.e., possible risk-return combinations) Chava faced for her old fund and now for her new fund. Compared to the old fund, the efficient frontier for the new fund is.

a) Shifted up and to the left

b) Shifted down and to the right

c) Shifted down and to the left

d) Exactly the same as before